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Can you find a five digit number which when you place a 7 at the beginning to make a new number is five times larger than when you place the 7 at the end?

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Can you find a five digit number which when you place a 7 at the beginning to make a new number is five times larger than when you place the 7 at the end?

14285

714285 = 5*142857

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Can you find a five digit number which when you place a 7 at the beginning to make a new number is five times larger than when you place the 7 at the end?

5*(10x+7)=700000+x

50x+35=700000+x

49x=699935

x=699935/49 = 14285

5*142857 = 714285

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